Pop 100
The Pop 100 was a songs chart that debuted in February 2005 and was released weekly by Billboard magazine in the United States until its discontinuation in 2009.It ranked songs based on airplay on Mainstream Top 40 radio stations, singles sales and digital downloads.In a press release about the new chart, he also stated that "the Pop 100's construction also makes sense when you notice the high correlation between the songs with the most top 40 plays and the best selling digital tracks."[5] Since digital sales have become a bigger factor in the compilation of the Hot 100, the dominance of R&B and hip hop on that chart has reduced, which in large part had rendered the Pop 100 redundant.Its airplay points were compiled from electronic monitoring of approximately 115 mainstream Top 40 stations by Nielsen Broadcast Data Systems.